Machine for shaping metal plates.



J. S. WORTH.

MACHINE FOR SHAPING METAL PLATES.

APPLIoATIoH FILED MAY 2o, 190e.

1,003,849. Patented sept. 19, 1911.

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MACHINE FOR SHAIING METAL PLATES.

y APPLICATION FILED MAY 20, 1908. 1,003,849.` Patented sept. 19,1911.

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MACHINE FOR SHAPING METAL PLATES.

APPLIoATxon FILED nu 2o. 190e.'

1,003,849. vPatented sept. 19,1911.

9 SHEETPSHEET 3.

J. S. WORTH.

MACHINE FOR SHAPING METAL PLATES.

APPLICATION FILED MAY 20, 1908.

9 SHEETS-SHEET 4.

J. S. WORTH.

MACHINE PoE SHAPING METAL PLATES.

APPLICATION FILED MAY 20, 1908.

1,003,849. Patented Sept. 19,1911.

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J. S. WORTH.

MAGHINB PoR SHAPING METAL PLATES.

APPLIOATION FILED MAY 20, 1906.

Patented Sept. 19, 1911.

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APPLICATION FILED MAY 20, 1908..

1,003,849. Patented Sept. 19,1911.

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J. S. WORTH.

MAUHINE FOB SHAPING METAL PLATES.

APPLIOATION FILED MAY zo, 100e.

1,003,849. Patented Sept. 19,1911.

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JOHN S. WQBTH, F COATESVILLE, PENNSYLVANIA, ASSIGNOB 0l' ONE-HALF T0 P. WORTH, OFVCOATESVILLE, PENNSYLVANIA.

MACEEIIINIEHE'OIB SHAPING METAL PLATES.

Specification' ot letters Paten-t.

Application Bled lay 20, 1908t Serial No. 433,865.

Patented Sept. 19, 1911.

To all whom 'it may concern.-

Be it known that I, JOHN S. WORTH, a citizen pf the United States, residing in Coatesville, Pennsylvania, have invented certain Improvements in Machines `for Shaping Metal Plates, of which the following is a specification.

The object of my invention is to construct a machine for rapidly and accurately shapinmetal plates.

y invention is especially ada ted for making a very deep dish in lar e p ates, although the invention is applica lev for other uses.

In the accompanying drawings z-Figure 1, is a vertical sectional view' on the line 1-1, Fig. 3, of my improved machine; Fig. 2, is a verticalfsectional view-on the line 2-2, Fig. 3; Fig. 3, is a plan view on the 20 line 3-3, Fig. 4; Fig. 4, is a .vertical sectional view on the line 4 4, Fig. 3, showing the central part of the machine omitted; Fig. 5, is a plan view of the upper Vportion of the machine; Fig. 6, is a plan view of the ydished former; Figs. .7, 8 and 9, show different steps in the process of dishing a plate; Fi rs. 10 and 11, are views showing the steps anti the methods ofmaking the flanged opening inthe dished plate; Fi 12, is a sectional view of a plate dishe cut and flangedby my improved machine; Fig. 13, is a detail view of the water supply ipe leading to the central movable cylin ers; Fig. 14, is a diagram perspective view showing the counter alance mechanism; Fi 15, is a view of a ortion of the counterba ance mechanism; Fig. 16, is an enlarged view of the upper head of the machine; Fig. 17, is an enlarged view of the lower head of the machine; Fig. 18, is a diagram view showing the paths of the different rolls; Fig. 19, is a` view of the water supply pi es leading to the two side cylinders; and ig. 20, is an enlarged view showing the corrugated flange of the ,formen Before explaining the. details of the machine I will describe in general its operation. y

' A flat plate previously heated, preferably in osition in the machine over a central lpin an resting on the flanges of a dis ed former. Two sets of ressure rolls are used to force the body o the plate gradually into the former, and rolls above the ianges having a perforation in the center, is placedV of the former tend to keep the edges of the late down upon the anges and as the plate 1s dished there are vertically arranged rolls wlhich prevent buckling of the edges of the p ate. 4 60 After the plate has been forced down so as to conform to the' shape of the former, and if it is desired to make an openin in the slate, a central cutter is used whic cuts a isk out of the bottom o'f the dished late 66 and then a flange may be formed, if desired, by continuing the downward movement of the head, the Harige is turned outward on the dished late, as clearly shown in the sectional view, Fig. 123 The plate is prefer- 70 ably dished in two heats; the plate-being partially dished on the first heat and after it is reheated it is completely dished, as shown, although in some instances a plate ma be, dished with a single heat. 75

ferring in the first instance to Fi s. 1 to 5, inclusive, A, A are the standards w ich are mounted on suitable foundations and supporting the transverse beams B. A', A' are extensions ofthe standards supporting the to frame B'. B2,'B2 are heavy beams exten ing transversely from one standard A to the other directly above the foundation and these beams su ort the mechanism of the dished former w ich forms the lower die of the machine.

I will first explain the mechanism for supporting and o eratin the dished former. The transverse earns 2 have depending saddles B? and a bearing b extends from one beam B2 to the other and astep bearing b' is carried by the saddles. Mounted in the bearings is a hollow shaft C having an annula'r iange c near its upper edge sup orting the head C to which is secure the dished former D. This former has a central opening as shown, so that a hole can be punched in the dished plate and lian ed by the mechanism described hereafter. n the upper edge of the former is a flan e d upon which theV plate to be punched is placed. This flange is preferably made separate from the former as illustrated in the large figures of the drawings.

The shaft C is driven from adrivin shaft C2 through a inion c and a gear w eel c2. The lower end) of the shaft is adapted to a step bearing b of any ordinary type, in the present instance rings on the bearing are adapted to grooves on the shaft. Extending adjustable rod lE carrying a pin e at its the cylinder.

upper end. This pin has fa screw threaded shank adapted to a threaded opening in the end of the rod. Also carried by this rod E is a. head E supporting a series of rings e', c2. The inner ring e2 has a head e3 and it has a ange resting upon the reduced ortion of the head E', as clearly shown in ig.

11.- This head e forms the lower cutter of the shears for cutting the plate. The vertically arranged rings e carry an annular head e4 which acts as a filler between the .edge of the dished former D and the cutter head es. When it is desired to make openings of different .diameters in the dished plate the head and the rings e4 can be removed and others of di'erent' sizes fsub,

stituted for them machine. i

The rod E and its head E are arranged to move vertically and this lvertical movement is accomplished through a plunger E2 extending through the lower bearing b of the shaft C and bearing upon the end of the rod E. The lower end of this plunger is adapted to a cylinder E3 which is suspended from the saddle B3, as shown clearly in Figs.

without dismantling the 1 and 2. This cylinder in the present 1nstance is' a hydraulic cylinder and water under pressure is admitted to thev cylinder through the controlling mechanism within easy reach of the operator, so that when it is desired to lift the head E water is admitted to the cylinder and the plunger is forced upward, carrying with it the rod and head, and

the head can be lowered to any degree desired by allowing the water to escape from The head is raised to bring the .pin above the: line of the plunger of the be readily removed -from the machine and itis also used when the plate is removed for the reheating, when necessary.

Carried by the transverse beams B is a hydraulic cylinder F in which is a plunger` F having a reduced portion F2 'which extends through a stuiing box in the cap f of the cylinder F. Mounted on the lower end of the plunger F is a head G and this head has a iange g which is shaped to conform to the finished plate, as shown in Fig. 11. The connection of this head is such as to allow it to freely turn on the end of the plunger and also carried by the plunger is a frame G' having arms which carry two conical rollers g which press upon the plate and aid in dishing it.

On the endof the extension F2 is a cross head f connected by rods f2 to a cylinder F3 in which is a plunger la, connected to a rod H extending throu h the plungerF and extension F2 and coup ed to a cutter head H having an annular flange h provided with a knife which operates in conjunction with the head eB to shear the plate and form two flanges on the rod and this cross head is connected toplungers z' adapted to cylinders I', one on each side of the main cylinder F, as clearly illustrated in Fig. 2.

Water under pressure is admitted to the several cylinders through valves placed in` easy reach of the operator. On each side of 'aty the main cylinder F is a slide J adapted to Ways on the beam B and the slides are operated in unison by a screw shaft J adapted to bearings in brackets on the beam B and v driven preferably by an electric motor through suitable reverse gearing, so'that the slides can be moved toward and from the main cylinder F.

. Carried by the slides J are guide frames J a sup orting hydraulic cylinders J 2 and adapte to each cylinder is a plunger K having an extension K', said extension beingk forked at the lower end and carrying a swivel ,bearing c for the presser roller Ic".

The periphery of these presser rolls is curved ias shown so as to conform to the finished plate, as illustrated in Figs. 7 and 9. dished former so that the plate with the As soon as water under pressure is ex- :hausted from the cylmders J 2 counterweights L return the plungers and the rolls lc. to thel raised osition clear of the dished former. The etail construction of the :counterweight mechanism will lbe described hereafter. v

Mounted on the foundation are radial guide frames M, four in the present in.- stance, as shown in Figs. 3, 4 and 5, on each of which is mounted a slide N. A feed.

screw mis adapted to bearings inthe 'frame M and to a nut m mounted on the carriage N, so that on turning this feed screw the carriage is moved toward and from the center of the machine. geared together so that they will turn in unison, the gearing being similar to the' gearing by which the several shafts n and p are driven, .as illustrated in Fig.y 3.'

of each' frame M and arranged to support the rear ends of theshafts n and p.

Adapted to move vertically on the slide N is a carrier N 'having a'stud n on which is The feed screws m are 125 M is a fixed standard secured to the rear mountedthe roller n* which is arranged to press the plate down upon the flange of the dished former. This carrier can be vertically adjusted by means of a screw n' geared to the shaft n and driven by any suitable mechanism, preferably by an electric motor, and the shafts n are coupled by shafts a* so tliat they' will work in unison, although they may be driven independently if desired. Also mounted on the slide N is a carrier P having a bracket p carryin a vertical stud p2 on which is mounte a roller p of the shape clearly illustrated in Figs. 4 and 9. This roller is arranged to press upon the inner edge of the partially dished late so as to force it against the dishedoriner and prevent it from bucklin asit is being forced into the former, an the carrier P can be raised and lowered by a screw shaft p* which engages the nut on the carrier and is driven by the shaft p from au electric motor or other power.

Thus it will be seenthat the two series of rollers n2 and p can be controlled at will so as to keep tension on the plate and revent it buckling. In practice the several s afts p are geared together by shafts p and'opei'ated from a single electric motor, the switch of which is placed within easy reach of the operator as is also the switch mechanism for turning the current on the motor controlling the shaft n as well as the shaft m for causing the slides to move to and from the center of the machine.

lfVhen it is wished to center a late in the machine, which is not perforate I may use the rollers p oirollers n* on the carriers N, Fig. 4.

In order to allow for the adjustment of the cylinders J 2 toward and from the center of the machine, so as to brin the rolls k in proper relation to the dis ed former, I mount two cylindrical casings R, Fig. 19, on the upper cross beam B and freel passing through each casing is a tube r. boxes are located at each end of each cyl inder so as to prevent the escape of water under pressure. Each tube has an opening as at r so as to form a communication between tlie interior of the tube and the interior of the cylindrical casing. The tube is connected to a tubular bracket r2 attached to one end of a cylinder J2, so that if the cylinder is moved toward and from the center of the machine the tube 1- will slide freely in the cylindrical. casing R. By this means I am enabled to make a xed connection between the cylindrical casings and the water supply pipe which extends to a point within easy reach of the operator. j I

In order to pro erly balance the rollers c and the carriers and plunger, I provide the mechanism which is clearly illustrated in Figs. 1, 14 and 15. On the portions J3 of the slides J are four sets of rollers 's around which pass theropes Z and l. These ropes are looped and pass around sheaves a on a cross head S secured to the lower portion of the plunger K. The ropes Z, l pass around the sheaves s2, s respectively, and'aroiind sheaves s* at the opposite side of the machine and down to sheaves s, s respectively, and are attached to rods mounted in spring boxes S. The sheaves s are mounted on a hollow weight L, while the sheaves s are mounted on a weight L ada ted to rest within the weight L. Both of t ese weights are preferably hollow and can be 'filled to properly balance the plungers and -rolls. When it is desired to move the rolls in unison then a pin Z2 is inserted in the openings in both weights so as to attach them together, but by simply drawing this pin each weight will move independently.

It will be noticed on referring to Fig. 16 that I preferably make the cutting edge of the knife h on the head H curvedl so that it will make a shear cut when moved past the blade on the Ihead e, thus making it easier to o crate than where the two blades are perfect y straight.

'il hile I prefer to mount the pin e on the lower head E, as shown in the drawings? and provide an openin for the insertion o the pin in the head Hg2 I may in some instances secure the pin in the head H and allow it to project into the opening in the lower head E. The pin will center the late if mounted in either head, but in some 'while the roller n holds the instances the pin may be dispensed with.

In the diagram, Fig. 18, I have shown the four rollers c, g', p3 and n2 all in line to illustrate that the paths of the three rolls which form the dish overlap each other late down Iupon the flan e of the dished ormer and the head G ho ds the center of the plate also d own upon the former, thus makin a con-V tinuous ressure upon the center of t e plate to its e ge. The overlapping of the paths 'of the rolls prevents the creasing of the 1 plate to a considerable extent and when the mechanism is properl operated there will 'be no buckling and t e plate will be perfectly dished.

The invention is particularly adapted for l dishinglarge plates, such as plates 8'feet in the proper de ee in a suitable furnace. The

central head is preferably raised so that it is on a line with the flange d of the dished former D, thenthe plate is taken from the furnace and placed so that the pin -e will project through the hole n the plate and the late will rest upon the head E and the iiange d of the former. The machlne 1s then set in motion, the dished former 1s rotated with the plate'and then the rollsl lo are lowered in contact'with the plate,- pressin n upon the plate near the eriphery, as indicated in Fig. 7 the head pressmg the vcentral portion of the plate at the'same time lift the rollers c and the head G out of contact with the plate, raising the central plate E and lifting the plate clear of the former when it is transferred from the machine and reheated inthe furnace. -.After reheating it is brought again to the machine and placed on the head E', which is lowered and both the rollers la and g are brought in. contact with thel plate and the heads E and G are moved .downward as the. dish is formed. As shown in Fig. 8

, both the rolls c and g simply rotate upon vbe cut at any point in the stroke.

their axes, while the-former D, with the late, rotates rapidly` around the center. en the dish is almost finished the rollers p3 press against the plate near its periphery so as to preventbuckling as the metal is drawn into the former, as at this point the rolls n2 lose control of the plate.

Afterthe plate is completely dished, as

vshown in Fig. 9, and it is desired to perforate and iiange the dished plate then the cutter H is brought down onto the plate, making a shear cut through the plate, the opening conforming to the shape of the cutter H and the head e2, Fig. 10. The cylinder for actuating the cutter, being carried by the upper plunger, the plate can As the movement of the cutter head continues the roundedv edge 71,2 is forced into the -portion of the plate overhangi'ng the ring e'i l'and thus the ange is bent outward as indicated in Figs. 11 and 12, although in some instances it will not be necessary or desirable to make an opening and iange-the plate and, in some cases, it will only be necessary to make an opening in the plate. lThe flanged plate is thenraised outvof the former by simplyv elevating the head E', backing olf the rollers, thehead G and elevating the head G', after which it can be .readily removed from the .machine and the operation can then be repeated uponV another plate.

mder toa fixed tubular ipe, connecting the top end x pipe V, so that the cylinder 'F can be raised l,

and lowered and yet the supply of water to the cylinder will not be interrupted.

In Fig. 20, I have shown the flange d of the former D provided with a series of grooves in its upper surface, so that any scale that should collect on theflange will pass into the grooves, thus insuring an'even surface for the plate to rest upon. In the specication I have alluded to the pin as centering the plate, but this is not absolutely necessary and is only used when it is immaterial whether a plate is perforated or not. By utilizing the pin I save time in centering, but the plate may be centered by special rollers n* carried bythe radially movable carriages, or may be centered by the roller p3, as noted above. The centering pin, however, is useful in bring-l ing the cutters of the .upper and lower dies in alinement so y as to insure a clean cut when a hole is to be cut in a plate, but the pin may be dispensed with in this instance where the two parts are accurately iitted.

The rollers carried by the plungers and head may be arranged in a diiferent manner from that shown, one roller may be independent of the a' other and arranged at a greater distance vfrom the center than the other, and the vertically arranged rollers may be of dierent shapes, depending upon the character ofwork to bev produced by the machine.

The process herein described forms the subject of a separate application for patent filed by me on the 20th day of May 1908, Serial N o. 433,866. y

I claim-:

1. The combinationk of a dished former,

means for rotating the former, a central plunger, rolls carried by the central plunger,

'a plunger situated at one side of the center and carrying a swiveled roll, the path of the swiveled roll overlapping the path of the central plunger, and meansfor raising and lowering both plungers.

2. The combination of a dished former,`

means for rotating the former, a central plunger mountedabove the former and carrying a head arranged to press upon the plate to be dished and also carrying two pressure rolls, two plungers, one on each side of the central plunger, eachy plunger carrying swiveled rolls, and means for raising and lowering the several plungers. Y.

3. The combination in a machine for dishing plates of a `rotatable dished former, upper and lower clamping heads for clamptween which the plate is clamped, means for exerting a pressure on the lower clamping head, means for exertingr a eater pressure on the upper clamping hea so as to force the late into the former and rolls arranged at different points from the center to press the plate against the former and means for rotating the former.

5. The 4combination ina dished former having a Hange, of a series of rolls mounted above lthe Hange, means for adjusting lthe rolls so as to cause them topress down upon the plate supported by the Hange, a series of pressure rolls, means for raising and lowering said rolls to dish the plate, and vertically arranged rolls for pressing out the buckle as it 1s formed.

' `6. The combination of a dished former', means for rotatin the former, a central plunger, a roll carrled thereby and arranged to bear upon the plate near its center, a

plunger at one side of the central plunger,

andy a swivel roll carried 4thereby and arranged to bearpupon the plate outside the path of the Hrs't mentioned roll.

7. The combination of a dished former,

means for rotating the former, said former having a flange, a central plunger, one or more rolls carried by the plunger and arranged to bear upon the plate near the center, two plungers mounted on eachside of the central plunger, swivel rolls carried by saidplungers and arranged to bear u on the plate outside of the path of the rst mentioned pair of rolls, a series of vertically arranged rolls adapted to bear upon the edge of the plate and prevent buckling, and

a series of rolls adapted to bear`upon the plate as it rests upon the Han e.

8. The 'combination of a dished former, means for rotating the former, a central plunger, a head carried by the plunger and adapted to bear upon the center of the plate to be dished and to freely rotate with the plate, and rolls carried by the plunger and arranged to bear upon the plate'.

9. The combination of a dished former, means for rotating the former, a vertically movable central head mounted in the former and adapted to be raised evenl with the upper edge of the former, a plunger centrally mounted above the former, a head swiveled upon the plunger. and adapted to be rotated with the former when the plate is clamped between the head and the former,

4and means for pressing the plate into the former,

10. The combination of a former, means' .for rotating the former, a central head mounted within the former,a rod extend from the head -down through ythe shaftu the former, a plunger on the rod, a 'cylinder in which the plunger is mounted, a'plunger mounted above the former and' having a head at its lower end, a cylinder in which the plunger is mounted, and means for pressing' the plate onto the former.

11. The combination of a dished former, a hollow shaft upon which the former is mounted, a bearing for said shaft means for driving the shaft, a head mounted the former, a" rod extending through the hollow shaft andcarrying the headz a plunger mounted on the rod, a cylinder 1n which the lunger is mounted, said cylinder bein carrled by the frame'of the apparatus, and means for pressing a plate onto theformer. 12. The combination in a plate dishing within c so. 'l

machine, of a central plunger, means for o erating the lunger to aid in dishing thep ate, acylin er carried by the plunger,`a head in the plun er and a piston in said cyllnder connecte to the head so that the head can be operated' no matter in what on sai head, the inner ring formin a portion of the'cutter, a cutter mounte on the plunger above the dished former, and means for operating the up er cutter so as to cutk an opening in the dis ed plate.

14. The combination of av dished former, a hollow head supporting the former, a hollow shaft carrying the head, means'for driving the shaft, a rod mounted in the hollow shaft, a head carried by the said rod and mounted in the hollow head carrying the former, rings on the said head forming an annular space, a plunger above the former, a head carried by the plunger and having a knife arranged to cut a ole in the plate, the cutter head also having a portion acting as a Hanging tool for Hanging the head on a continued movement of the4 cutter head.

15. The combination in a rotating dished former, of a central plunger, rolls carried f by the central plunger for acting u on the plate carried by the former, two p ungers mounted' on each side of the central plunger and having swivel rolls also actingl upon the plate, with means for adjusting t e side plungers in unison toward and from the central plunger.

with the gear, bearings i 16. The combination .of a dishedformer,

` means for rotating .thev Kdished former, a

vcentral plunger mounted above the' former, rolls :carried by the said plunger, plungers at eachsde of the central plunger, s wiveled 17.111@ cambiaria-Qn of... dished. former,

meansI for rotating thdishedformer, a central plunger jmountedabove the former, rolls carried by the said plunger, pllrngers, at.4

each side of the central plunger, .swiveled rollers carried by the side plunges, means for moving the-side plungers toward and from the central plunger, and `counterbalancemean's consisting of'two sets of ropes passing around the sheaves Jon the `frame and 4sheaves -on the side plungers, with Weights suspended from said ro es.-

18. The` combination 'of a dis ed former,

means for -rotating the dished former,- a central plunger mounted above the former, rolls carrled byl said lunger, plungers at each side of the centra plunger, swiveled rollers carriedby the side plungers, means for moving the side plungers toward andV from the central plunger, counterbalance means consisting of two sets o f ropes passmg around the sheaves on the frame'and sheaves on the side 'plungers, weights suspended from said ropes, and means for connecting theweight-s so that they will work as one weight.

19. lThe combination of a Adished former,

means for rotating the former,a frame, a

cylindermounted .on the frame above -the former, va plunger adapted to the cylinder, ahead carried'by the plunger, rolls also carried by the plunger adapted to press a plate into the former,.a cylinder carried b the upper en'd of the plunger, a rod exten ing through the plunger, a plunger adapted to the last mentloned cylin er, and a head -carried at the lower end of said rod.

20. The combination of a frame, a 'shaft mounted on the frame, a dished former mounted on the shaft, means for rotating the shaft and the former, a cross beam situated on the trame above the former, a cylinder mounted on the cross beam, aplun-l ger mounted in the cylinder and carrying a head atits lower end and rolls for dishing the plate, two slides mounted on the beams a screw for adjusting the slides toward and from each other, cylinders carried by .the slides, plungers mounted on the cylinders,

"extensions on the plungers, and. swiveled rolls carried by the extensions and also adapted to shape the plate to the former.

21. The combination of, a dished and i iianged former, means for pressing a plate into the former'to dish it, a slide, a `carrier mounted on the slide, and a roll mounted hol to move the slides -screws are connected a standard on each slide and a standard on the carrier and situated directly above the 'flan e'of the-former sothatthe'roll "will dished.

22. The.l combination of a former, means v*for rotating the former, means for pressingy a plate into the former a series of radially arranged frames, a `sli e on each frame, a

vertically adjustable Acarrier on each slide,l

and a roll mounted on each carrier, with means for adjusting the kslide and-means for .adjusting theA carrier.

23. The combination of a dished former, means forrotating the former, means for pressing a plate into the former, a series of radially arranged. frames, a slide on 4each frame, two vcarriers on each slide, one mounted above the other andeach independently adjustable in a vertical direction,` means for adjusting the slide, and a roller oneach* carrier, one roller 4arranged atan angle to the other. 1

- 24C. The combination of a dished and flanged` former, means for rotating the former, rolls for pressing the late into the former, a series of radial rames, slides adapted t'o move radially on each-frame, a

screw mounted on each-frame and adapted gearing `by which the so as to work in unison,

on each frame back of the slides, upperA and the. plate onto the ilange as it is being lower shafts mounted in bearings on the two standards, two vertical screws in each of the standards of the slides, two carriers mounted on the standards, one carrier carry` ing a horizontally arranged roller and the other carrying a vertically arranged roller,

and vertical screws one geared to one of the said shafts .and the other geared to the other shaft and one adapted to a nut on one carrier and` the. other adapted to a nut on the other carrier, so that said -carriers can be independently adjusted in a vertical direction.

25. The combination in a machine for shaping metal plates, of a former, a cylinder mounted above the former, a plunger in the cylinder, a cylinder carried by the upper end of the plunger2 a fixed tubular supply pipe, a bracketprojecting from one side of the said movable cylinder, a tube extending from this bracket through the xed supply pipe, and an opening in the tube so that waterunder pressure may iiow to the c linder no matterfin what position the cylln-v pipe', an opening in the tube forming com- 13 0- munication with the interior of the supply pipe, and means for moving the cylinders toward and from each other. "27. The oombination in a machiney for shaping metel plates, of a revolving dished yformer having a flangel at its periphery, said ange l having a series ot annular grooves in its upper surface, means for orcin the plate to be dished into the former an rollers tending to hold the plate on the flan e. l

28. T e combination of a revolving dished former, a clamp revolving with the former and having the lower portion of the clamp forming, when down, a portion of the formi er, said clamp driving the plate 4to be dished and capable of moving downward to pull the plate to be dished in the direction of the bottom of the former, and a series ofrollers pressing on different portions of theplate at the Isame time between the clamp and the --top ofthe former to press the'plate into the former. n l

In testimony where' f, I have signed my name to this speciicatiomin the presence of two subscribing witnesses. V

e JOHN S. WORTH. Witnesses:

Jos. H. KnnrN. WM. A. BARR. 

